M4V format only supported by Apple devices. M4V files you purchased on Apple shop will be drm protected. You can only play them on iTunes, iPod, iPhone. And there are limitation of play on 5 devices. Kigo M4V Converter is a powerful M4V converter. It converts M4V videos to MOV format in high speed and great quality. Key features of Kigo M4V Converter for MacSupport any M4V video can be played on your iTunesKigo M4V Converter is a professional M4V video to unprotected MOV format converter.